WordReference Random House Unabridged Dictionary of American English © 2026
bi•o•nom•ics
(bī′ə nom′iks),USA pronunciation n. (used with a sing. v.)
bi′o•nom′ic, bi′o•nom′i•cal, adj.
bi′o•nom′i•cal•ly, adv.
bi•on•o•mist
(bī on′ə mist),USA pronunciation n.
- Ecologyecology (def. 1).
- see -nomy, -ics 1885–90; bio- + -nomics, probably on the model of
economics
bi′o•nom′i•cal•ly, adv.